Balanced rock sculptures pay tribute to a murdered conservationist and his pioneer wife.

Once the foundation for a mansion, these ruins now offer amazing panoramic coastal views.

A secret climbing tree hides along the side of a Costa Rican road.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

This Costa Rican topiary park is a surreal garden of unearthly delights.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

Sloth rehabilitation center in the jungle of Costa Rica.

These sea caves are the source of Xigia Beach's distinct aroma.

This slumbering beast honors the Bavarian soldiers who died in Greece during a 19th-century typhoid outbreak.

Step inside an ancient beehive tomb built for a mysterious cult hero.

This beehive tomb built for royalty sat hidden for over 3,000 years.

Overlooking the harbor is a beautiful neglected mansion guarded by two Egyptian sphinxes.

A small island with shimmering pink sands, home to loggerhead turtles and rare plants.

This smily stone feline is meant to represent a mythical lion that almost destroyed the island of Kea.

A miniature desert appears out of nowhere on the lush isle of Lemnos, like something out of a Greek myth.

This little-known, 35,000-specimen collection in Greece is a lepidopterist's dream.

An abandoned Byzantine fortress and notorious prison.

This secret coastal village is studded with pastel-colored houses all piled on top of one another.

Poseidon? No one seems to know.

The hermits of Karoulia protect their asocial lifestyles by living on the vertical face of a treacherous precipice.

This town named for the ancient God of War is home to fewer than a thousand people, but it's the birthplace of the Greek Revolution.

Swarms of dainty flying insects swarm into the Petaloudes Valley to get busy.

An alien landscape on the banks of the Aegean Sea.

This remarkable cave was discovered after a shepherd watched bees enter and exit through a small fissure.